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' 3 Sheets-Sheet l. W. A. KONEMAN. I METHOD OF AND APPARATUS FOR PRODUCING PROM GOA L SMOKELESS FLAME FOR HEATING. No. 461,343.

Patentgd 021:. 13, 1891.

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(No Model W. A. KONEMAN. METHOD OF AND APPARATUSTOR PRODUCING FROM GOAL SMOKELESS FLAME FOR. HEATING.

Patented Oct. 13, 1891.

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SMOKBLESS FLAME FOR HEATING.

N0.'461,343. Patented Oct. 13, 1891.

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' UNITED. STATES 1 AT lt-la r OF ICE.

WILLIAM A. KONEMAN, OF CHICAGO, ILLINOIS, Assieivon TO THE CHICAGO HEAT STORAGE COMPANY, or SAME PLACE.

METHOD OF AND APPARATUS FOR PRODUCING FROM COAL SMOKELESS FLAME FOR HEATING.

SPECIFICATION forming part of Letters Patent No. 461,343, label October 13, 1891.

Application fila Nqvenlber3, 1890 Serial No.370,122. (N model.)

To all whom it may concern: 1 A is the fuel-gas producer, and Bis the gas- Be it known that'LWILLIAM A. KONEMAN; combustion chamber, both being by prefera citizen of the United States, residing at ence within the same brick structure (pref Chicago, in the county of Cook and State of erably formed of silica brick) and intercom- 5 Illinois, have invented a new anduseful Im 'municating therein through apassage r. The

provement in Methods-of and Apparatus for only material difference between the construc- Producing from Coal Smokeless Flame for tions presented in Figs. 1 and 3 is that in the Heating, of which the following is a specificaformer the passage '1' leads into the upper part t-ion. of the gas-combustion chamber, from which 10 The object of myinvention is to provide for then the flame-outlet (1 leads from its lower the combustion of coal in sucha-manner that portion, while in thelatter the passage rleads by a continuous operation from the point of between two internal partitions 0 and 0 into its ignition it will be reduced to and emerge the lower part of the gas-combustion chamfor direction against an object to be heated ber,whence then the flame-outlet qleads from I 5 (as particularly for.welding and forging) in the upper part of the chamber.

the form of an intensely-hot pure flame. The air-spaces p in the Walls of the struct- To practice my improvement, I first build a ure and in the partition 0, (or partitions 0 0',) coal fire on the grate of a fuel-gas producer, forming the separation between the chambers supplying to it the necessary oxygen to 'sup- A and- B, may intercommunicate, as repre- 20 port combustion, and reduce the bed to a consented in Fig. 2, whereby all may be supplied dition of incandescence, then filling the prowith air through one or more inlets n. An ducer upon the incandescent bed with coal air-pipe m leads from the hot-air supply in (for supplying which I provide automatically the front wallof the structure into the ashoperating means) and supplying oxygen, prefpit l below the grate 7c in the producer A, and 2 5 erably through the media of both steam and I lead a steam-pipe i from the team-supply air, with the latter heated by the otherwise (not shown) into the upper end of the pipe m. waste heat of radiation in the walls of the Several pipes m may be used, as indicated. producer, the amount of oxygen supplied be 0 is the interstitial pile of incombustible ing suffieient to reduce the products of commaterial in the form of checker-work in the o bustion in the producer to a fuel-gas. From combustiorrchamber B, and h denotes the airthe producer I lead the fuel-gas into and pass inlet-s from the air-spaces in the walls of the it through a gas-combustion chamber, while combustion-chamber, leading into the latter continuously supplying air to the latter, prefat difi erent points of elevation on the pile C, erably at vertically-disposed Series of inlets whereby oxygen may be fed into the gas at 3 5 in the walls of the said combustion-chamber, different stages of its combustion while passwhich involves in its construction an intering through the pile. stitial .pile of incombustible material sup- The apparatus I provide for feeding the ported over an ash-pit, and from an end of coal is located above the producer-chamber which chamber the outlet leads. Like theair A and comprises a worm g on a shaft g, car- 1 4o supplied to the producer that introduced into rying a gear 9 at one end and confined in a the combustion-chamber is also, by p'refercylinder f, into which leads from abovea hopence, first heated by passing it through the per f. The cylinder communicates at its air-space in the walls of the chamber. open end with the side of asupplemental p- Ishow improved apparatus for the practice per D, covered at its upper end and leading 5 45 of my methodin the accompanying drawings, at its lower end into the top of the chamber in which A, wherein it is provided with a conical valve Figurelisaview in sectional side elevation; 6, adapted to fit the lower end of the hopper Fig. 2, a plan section taken on the line 2 2 of and suspended on a rod 6, extended through Fig. 1 and viewed in the direction of the arthe cover, where it is threaded and adjusted mo 50 rows; and Fig. 3 a view like that presentedin to effect closing or opening of the valve by a l, but showing a modified construction. nut in the fOlllIOf a hand-Wheel d. The hopper D is also provided with a lateral feedchute 0, adapted to be hermetically closed at its outer end and serving to admit the coal to the hopper when the worm is not operative or being used, in which case the valve 6 is closed before opening the chute c to prevent escape of gas being generated in the'producer. After the closure the cover of the chute c is removed to permit the hopper D to be filled through it with coal, after which the chute is close and the valve opened by lowering it to permit the coal to discharge into the producer.

The operation is as follows: A fire is built on the grate Z and allowed to burn till it forms an incandescent bed of coal. Then the supply of coal is admitted through thehopper D and steam introduced with the air through the pipe or pipes m, and forced through the material on the grate. This reduces the products of combustion in the producertoafuelgas, which is carried through the passage 1" into the gas-combustion chamber B, wherein it passes (downward with the apparatus as shown-in Fig. 1 and upward with that shown in Fig. 3) through the interstitial pile O, emerging thence through the outlet (1 as a pure or smokeless and intensely. hot flame. In passing through the interstices of the pile C the gas deposits the tar and other hydrocarbons, which with the gas and such fine particles of coal as are carried over wit-h it are subjected to thorough combustion. Any ashes resulting from the combustion in the pile O of the coal particles may drop into and be removed from time to time from the pit b provided below the support a for the interstitial pile. As the fuel-gas product of the producer passes through the interstices of the pile O airis constantly fed to it to support the combustion, thereby creating an intense heat, which reduces the pile to and maintains it in a condition of incandescence; and as the product-s of the gas combustion proceed toward the outlet through the pile they are met i the air from the ports 71.

at difierent points as the degree of their combustion increases with additional supplies of Thus when the pro- 1. The method of producing from coal by a continuous operation an intensely-hot pure flame for direction against an object to be heated, which consists in generating fuel-gas by burning coal in a producer and leading the resultant fuel-gas vertically through an interstitial pile of incandescent incombustible material in a combustion-chamber to an outlet and supplying oxygen through the said combustion-chamber and pile to the products of combustion substantially throughout the entire extent of their course in passing through the same at different points of elevation with relation to the said outlet, whereby as the products of the gas combustion proceed toward the outlet they are met at different points as the degree of their combustion increases with additional supplies of oxygen, substantially as and for the purpose set forth.

2. In an apparatus for producing from coal an intensely hot pure flame for direction against an object to be heated, the combination of a fuel-gas producer A, provided with ineansfor continuously supplying oxygen to it, and a combustion-chamber B, communicating with the discharge end of the producer and containing an interstitial pile C of incombustible material between its inlet and outlet and having air-inlets h in its wall at diflerent points of elevation with relation to the outlet throughout the course of the products of combustion through the interstitial pile for continuously supplying oxygen to the combustion chamber, substantially as set forth.

3. In an apparatus-for producing from coal an intensely-hot pure flame for direction against an object to be heated, a producerA and a combustion-chamber B, communicating with each other, air-spaces in the walls communicating with the outer air, a grate k, and an ash-pit Zin the producer, an interstitial pile O of incombustible material surmounting an ash-pit b in the combustion-chamber between its inlet and outlet and communicating with the said air-spaces at different points throughout the course of the products of combustion, an air-pipe m, leading from an airspace into the ash-pit Z, and a steam-supply pipe 7:, substantially as described.

WILLIAM A. KONEMAN. In presence of- J. WV. DYRENFORTH, M. J. FROST. 

